Select Unique Value


 
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# 1  
Old 05-31-2012
Select Unique Value

HOW CAN I SELECT AN UNIQUE STRING FROM A FIELD? ACTUALLY I WANT TO PRINT RECORDS THAT 2ND FIELD OF THAT HAVE ONE CHARACTER AND IT MUST BE "P"
Code:
AWK '$2~"[P]" {PRINT $0}' IN > OUT

BUT THIS CODE PRINT ALL RECORDS WHICH 2ND FIELDS OF THEM START WITH "P" AND MAY CONTAINS ANOTHER CHARACTER!
# 2  
Old 05-31-2012
Try:
Code:
awk '$2=="P"' IN > OUT

(BTW UPPERCASE not necessary)
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